mirror of
https://github.com/urbit/ares.git
synced 2024-11-29 22:56:28 +03:00
255 lines
12 KiB
Racket
255 lines
12 KiB
Racket
#lang racket
|
|
|
|
(require rackunit)
|
|
|
|
;; This interpreter removes all nested lambdas by converting them
|
|
;; into a tagged union, which is matched by the continuation-application
|
|
;; function to invoke the body of the lambda.
|
|
|
|
(define (nock-noun subject formula gates err-k trace)
|
|
(nock-noun-cps subject formula gates err-k trace empty-k))
|
|
|
|
(define (nock-noun-cps subject formula gates err-k trace k)
|
|
(match formula
|
|
([cons (cons (var b) (var c)) (var d)]
|
|
(nock-noun-cps subject (cons b c) gates err-k trace
|
|
(nock-cons-k-1 subject d gates err-k trace k)))
|
|
([cons 0 (var b)]
|
|
(nock-tree-find subject b err-k trace k))
|
|
([cons 1 (var b)]
|
|
(apply-k k b))
|
|
([cons 2 (cons (var b) (var c))]
|
|
(nock-noun-cps subject b gates err-k trace
|
|
(nock-2-k-1 subject c gates err-k trace k)))
|
|
([cons 3 (var b)]
|
|
(nock-noun-cps subject b gates err-k trace
|
|
(nock-3-k k)))
|
|
([cons 4 (var b)]
|
|
(nock-noun-cps subject b gates err-k trace
|
|
(nock-4-k k)))
|
|
([cons 5 (cons (var b) (var c))]
|
|
(nock-noun-cps subject b gates err-k trace
|
|
(nock-5-k-1 subject c gates err-k trace k)))
|
|
([cons 6 (cons (var b) (cons (var c) (var d)))]
|
|
(nock-noun-cps subject b gates err-k trace
|
|
(nock-6-k subject c d gates err-k trace k)))
|
|
([cons 7 (cons (var b) (var c))]
|
|
(nock-noun-cps subject b gates err-k trace
|
|
(nock-7-k c gates err-k trace k)))
|
|
([cons 8 (cons (var b) (var c))]
|
|
(nock-noun-cps subject b gates err-k trace
|
|
(nock-8-k subject c gates err-k trace k)))
|
|
([cons 9 (cons (var b) (var c))]
|
|
(nock-noun-cps subject c gates err-k trace
|
|
(nock-9-k-1 b gates err-k trace k)))
|
|
([cons 10 (cons (cons (var b) (var c)) (var d))]
|
|
(nock-noun-cps subject c gates err-k trace
|
|
(nock-10-k-1 subject d b gates err-k trace k)))
|
|
([cons 11 (cons (cons (var b) (var c)) (var d))]
|
|
(nock-noun-cps subject c gates err-k trace
|
|
(nock-11-k subject b d gates err-k trace k)))
|
|
([cons 11 (cons (var b) (var c))]
|
|
(nock-noun-cps subject c gates err-k trace k))
|
|
([cons 12 (cons (var ref) (var path))]
|
|
(nock-noun-cps subject ref gates err-k trace
|
|
(nock-12-k-1 subject path gates err-k trace)))))
|
|
|
|
(define (reverse-address address k) (reverse-address-acc address 1 k))
|
|
|
|
(define (reverse-address-acc address reversed k)
|
|
(if (= address 1)
|
|
(apply-k k reversed)
|
|
(reverse-address-acc (arithmetic-shift address -1) (bitwise-ior (arithmetic-shift reversed 1) (bitwise-and address 1)) k)))
|
|
|
|
(define (nock-tree-find-reversed tree reversed k)
|
|
(if (= reversed 1)
|
|
(apply-k k tree)
|
|
(if (even? reversed)
|
|
(nock-tree-find-reversed (car tree) (arithmetic-shift reversed -1) k)
|
|
(nock-tree-find-reversed (cdr tree) (arithmetic-shift reversed -1) k))))
|
|
|
|
(define (nock-tree-find tree address err-k trace k)
|
|
(if (= address 0)
|
|
(apply-err-k err-k (cons 2 trace))
|
|
(reverse-address address (nock-tree-find-k tree k))))
|
|
|
|
(define (nock-tree-edit-reversed subtree reversed tree k)
|
|
(if (= reversed 1)
|
|
(apply-k k subtree)
|
|
(if (even? reversed)
|
|
(nock-tree-edit-reversed subtree (arithmetic-shift reversed -1) (car tree)
|
|
(nock-tree-edit-car-k tree k))
|
|
(nock-tree-edit-reversed subtree (arithmetic-shift reversed -1) (cdr tree)
|
|
(nock-tree-edit-cdr-k tree k)))))
|
|
|
|
; # operator in nock spec: tree editing
|
|
(define (nock-tree-edit subtree address tree err-k trace k)
|
|
(if (= address 0)
|
|
(apply-err-k err-k (cons 2 trace))
|
|
(reverse-address address
|
|
(nock-tree-edit-k subtree tree k))))
|
|
|
|
(define empty-k (list 'empty-k))
|
|
(define (nock-cons-k-1 subject d gates err-k trace k) (list 'nock-cons-k-2 subject d gates err-k trace k))
|
|
(define (nock-cons-k-2 u k) (list 'nock-cons-k-2 u k))
|
|
(define (nock-2-k-1 subject c gates err-k trace k) (list 'nock-2-k-1 subject c gates err-k trace k))
|
|
(define (nock-2-k-2 u gates err-k trace k) (list 'nock-2-k-2 u gates err-k trace k))
|
|
(define (nock-3-k k) (list 'nock-3-k k))
|
|
(define (nock-4-k k) (list 'nock-4-k k))
|
|
(define (nock-5-k-1 subject c gates err-k trace k) (list 'nock-5-k-1 subject c gates err-k trace k))
|
|
(define (nock-5-k-2 u k) (list 'nock-5-k-2 u k))
|
|
(define (nock-6-k subject c d gates err-k trace k) (list 'nock-6-k subject c d gates err-k trace k))
|
|
(define (nock-7-k c gates err-k trace k) (list 'nock-7-k c gates err-k trace k))
|
|
(define (nock-8-k subject c gates err-k trace k) (list 'nock-8-k subject c gates err-k trace k))
|
|
(define (nock-9-k-1 b gates err-k trace k) (list 'nock-9-k-1 b gates err-k trace k))
|
|
(define (nock-9-k-2 u gates err-k trace k) (list 'nock-9-k-2 u gates err-k trace k))
|
|
(define (nock-10-k-1 subject d b gates err-k trace k) (list 'nock-10-k-1 subject d b gates err-k trace k))
|
|
(define (nock-10-k-2 u b err-k trace k) (list 'nock-10-k-2 u b err-k trace k))
|
|
(define (nock-11-k subject b d gates err-k trace k) (list 'nock-11-k subject b d gates err-k trace k))
|
|
(define (nock-12-k-1 subject path gates err-k trace k) (list 'nock-12-k-1 subject path gates err-k trace k))
|
|
(define (nock-12-k-2 gates err-k trace u k) (list 'nock-12-k-2 gates err-k trace u k))
|
|
(define (nock-12-k-3 u v outer-err-k outer-trace k) (list 'nock-12-k u v outer-err-k outer-trace k))
|
|
(define (nock-tree-find-k tree k) (list 'nock-tree-find-k tree k))
|
|
(define (nock-tree-edit-car-k tree k) (list 'nock-tree-edit-car-k tree k))
|
|
(define (nock-tree-edit-cdr-k tree k) (list 'nock-tree-edit-cdr-k tree k))
|
|
(define (nock-tree-edit-k subtree tree k) (list 'nock-tree-edit-k subtree tree k))
|
|
|
|
(define (apply-k k x)
|
|
(match k
|
|
([list 'empty-k] x)
|
|
([list 'nock-cons-k-1 (var subject) (var d) (var gates) (var err-k) (var trace) (var k)]
|
|
(nock-noun-cps subject d gates err-k trace (nock-cons-k-2 x k)))
|
|
([list 'nock-cons-k-2 (var u) (var k^)] (apply-k k (cons u x)))
|
|
([list 'nock-2-k-1 (var subject) (var c) (var gates) (var err-k) (var trace) (var k)]
|
|
(nock-noun-cps subject c gates err-k trace (nock-2-k-2 x gates err-k trace k)))
|
|
([list 'nock-2-k-2 (var u) (var gates) (var err-k) (var trace) (var k)]
|
|
(nock-noun-cps u x gates err-k trace k))
|
|
([list 'nock-3-k (var k)]
|
|
(if (pair? x) (apply-k k 0) (apply-k k 1)))
|
|
([list 'nock-4-k (var k)]
|
|
(apply-k k (+ 1 x)))
|
|
([list 'nock-5-k-1 (var subject) (var c) (var gates) (var err-k) (var trace) (var k)]
|
|
(nock-noun-cps subject c gates err-k trace
|
|
(nock-5-k-2 x k)))
|
|
([list 'nock-5-k-2 (var u) (var k)]
|
|
(if (eqv? u x) (apply-k k 0) (apply-k k 1)))
|
|
([list 'nock-6-k (var subject) (var c) (var d) (var gates) (var err-k) (var trace) (var k)]
|
|
(if (= 0 x)
|
|
(nock-noun-cps subject c gates err-k trace k)
|
|
(if (= 1 x)
|
|
(nock-noun-cps subject d gates err-k trace k)
|
|
(apply-err-k err-k (cons 2 trace)))))
|
|
([list 'nock-7-k (var c) (var gates) (var err-k) (var trace) (var k)]
|
|
(nock-noun-cps x c gates err-k trace k))
|
|
([list 'nock-8-k (var subject) (var c) (var gates) (var err-k) (var trace) (var k)]
|
|
(nock-noun-cps (cons x subject) c gates err-k trace k))
|
|
([list 'nock-9-k-1 (var b) (var gates) (var err-k) (var trace) (var k)]
|
|
(nock-tree-find x b err-k trace
|
|
(nock-9-k-2 x gates err-k trace k)))
|
|
([list 'nock-9-k-2 (var u) (var gates) (var err-k) (var trace) (var k)]
|
|
(nock-noun-cps u x gates err-k trace k))
|
|
([list 'nock-10-k-1 (var subject) (var d) (var b) (var gates) (var err-k) (var trace) (var k)]
|
|
(nock-noun-cps subject d gates err-k trace (nock-10-k-2 x b err-k trace k)))
|
|
([list 'nock-10-k-2 (var u) (var b) (var err-k) (var trace) (var k)]
|
|
(nock-tree-edit u b x err-k trace k))
|
|
([list 'nock-11-k (var subject) (var b) (var d) (var gates) (var err-k) (var trace) (var k)]
|
|
(if (member b (list (tas "hunk") (tas "hand") (tas "lose") (tas "mean") (tas "spot")))
|
|
(nock-noun-cps subject d gates err-k (cons (cons b x) trace) k)
|
|
(nock-noun-cps subject d gates err-k trace k)))
|
|
([list 'nock-12-k-1 (var subject) (var path) (var gates) (var err-k) (var trace)]
|
|
(nock-noun-cps subject path gates err-k trace
|
|
(nock-12-k-2 gates err-k trace x k)))
|
|
([list 'nock-12-k-2 (var gates) (var err-k) (var trace) (var u) (var k)]
|
|
(let*
|
|
[(gate (car (car gates)))
|
|
(outer-err-k err-k)
|
|
(err-k (car (cdr (car gates))))
|
|
(outer-trace trace)
|
|
(trace (cdr (cdr (car gates))))
|
|
(gates (cdr gates))
|
|
(core (cons (car gate) (cons (cons u x) (cdr (cdr gate)))))]
|
|
(nock-noun-cps core (car core) gates err-k trace
|
|
(nock-12-k-3 u x outer-err-k outer-trace k))))
|
|
([list 'nock-12-k-3 (var u) (var v) (var outer-err-k) (var outer-trace) (var k)]
|
|
(if (equal? 0 x)
|
|
; ~
|
|
(outer-err-k (cons 1 (cdr v)))
|
|
(if (equal? 0 (car x))
|
|
(outer-err-k (cons 2 (cons (cons (tas "hunk") (cons u v)) outer-trace)))
|
|
(apply-k k (cdr (cdr x))))))
|
|
([list 'nock-tree-edit-car-k (var tree) (var k)]
|
|
(apply-k k (cons x (cdr tree))))
|
|
([list 'nock-tree-edit-cdr-k (var tree) (var k)]
|
|
(apply-k k (cons (car tree) x)))
|
|
([list 'nock-tree-edit-k (var subtree) (var tree) (var k)]
|
|
(nock-tree-edit-reversed subtree x tree k))
|
|
([list 'nock-tree-find-k (var tree) (var k)]
|
|
(nock-tree-find-reversed tree x k))
|
|
((var k^) #:when (procedure? k^) (k^ x))))
|
|
|
|
(define (apply-err-k err-k err) (err-k err))
|
|
|
|
;; macro for %tas literals:
|
|
;; converts input string into a numeric literal of that string represented as a %tas, i.e. an
|
|
;; atom with the ascii bytes of the string in sequence (first->LSB, last->MSB)
|
|
(define-syntax (tas str)
|
|
(quasisyntax
|
|
(unsyntax
|
|
(foldr
|
|
(lambda (char atom) (bitwise-ior (bitwise-and #xFF (char->integer char)) (arithmetic-shift atom 8)))
|
|
0
|
|
(string->list (car (cdr (syntax->datum str))))))))
|
|
|
|
(define nock-here 1)
|
|
(define (nock-car address) (* address 2))
|
|
(define (nock-cdr address) (+ 1 (* address 2)))
|
|
(define (get-0 x) (cons 0 x))
|
|
(define (literal-1 x) (cons 1 x))
|
|
(define (eval-2 x y) (cons 2 (cons x y)))
|
|
(define (cell?-3 x) (cons 3 x))
|
|
(define (inc-4 x) (cons 4 x))
|
|
(define (=-5 x y) (cons 5 (cons x y)))
|
|
(define (if-6 x y z) (cons 6 (cons x (cons y z))))
|
|
(define (compose-7 x y) (cons 7 (cons x y)))
|
|
(define (declare-8 x y) (cons 8 (cons x y)))
|
|
(define (call-9 x y) (cons 9 (cons x y)))
|
|
(define (update-10 x y z) (cons 10 (cons (cons x y) z)))
|
|
(define (hint-11 x y) (cons 11 (cons x y)))
|
|
(define lootru 0)
|
|
(define loofal 1)
|
|
|
|
(define test-tree (cons (cons 4 5) 3))
|
|
(define decrement-4-core
|
|
(cons
|
|
(if-6 (=-5 (get-0 (nock-car (nock-cdr nock-here))) (inc-4 (get-0 (nock-cdr (nock-cdr nock-here)))))
|
|
(get-0 (nock-cdr (nock-cdr nock-here)))
|
|
(call-9 (nock-car nock-here) (update-10 (nock-cdr (nock-cdr nock-here)) (inc-4 (get-0 (nock-cdr (nock-cdr nock-here)))) (get-0 nock-here))))
|
|
(cons 4 0)))
|
|
|
|
(define (nock-test subject formula) (nock-noun subject formula '() test-err-k '()))
|
|
|
|
(define (test-err-k err)
|
|
(printf "Error: ~v" err)
|
|
(error 'nock-err))
|
|
|
|
(check-equal? (nock-test test-tree (get-0 nock-here) ) test-tree "tree address 1")
|
|
(check-equal? (nock-test test-tree (get-0 (nock-car nock-here))) (car test-tree) "tree address 2")
|
|
(check-equal? (nock-test test-tree (get-0 (nock-cdr nock-here))) (cdr test-tree) "tree address 3")
|
|
(check-equal? (nock-test test-tree (get-0 (nock-car (nock-car nock-here)))) (car (car test-tree)) "tree address 4")
|
|
(check-equal? (nock-test test-tree (get-0 (nock-cdr (nock-car nock-here)))) (cdr (car test-tree)) "tree address 5")
|
|
(check-equal? (nock-test 0 (literal-1 test-tree)) test-tree "literal")
|
|
(check-equal? (nock-test 0 (eval-2 (literal-1 test-tree) (literal-1 (get-0 2)))) (car test-tree) "eval")
|
|
(check-equal? (nock-test test-tree (cell?-3 (get-0 1))) lootru "test cell true")
|
|
(check-equal? (nock-test test-tree (cell?-3 (get-0 3))) loofal "test cell false")
|
|
(check-equal? (nock-test 0 (inc-4 (literal-1 0))) 1 "increment")
|
|
(check-equal? (nock-test test-tree (=-5 (literal-1 test-tree) (get-0 1))) lootru "test equals true")
|
|
(check-equal? (nock-test test-tree (=-5 (literal-1 test-tree) (get-0 2))) loofal "test equals false")
|
|
(check-equal? (nock-test test-tree (if-6 (literal-1 lootru) (literal-1 5) (get-0 100))) 5 "test if tru")
|
|
(check-equal? (nock-test test-tree (if-6 (literal-1 loofal) (get-0 100) (literal-1 5))) 5 "test if false")
|
|
(check-equal? (nock-test 0 (compose-7 (literal-1 test-tree) (get-0 2))) (car test-tree) "test compose")
|
|
(check-equal? (nock-test 0 (declare-8 (literal-1 test-tree) (get-0 2))) test-tree "test declare")
|
|
(check-equal? (nock-test 0 (call-9 (nock-car nock-here) (literal-1 decrement-4-core))) 3 "test call")
|
|
(check-equal? (nock-test 0 (update-10 (nock-cdr nock-here) (literal-1 (cons 6 7)) (literal-1 test-tree))) (cons (cons 4 5) (cons 6 7)) "test update")
|
|
(check-equal? (nock-test 0 (call-9 (nock-car nock-here) (update-10 (nock-car (nock-cdr nock-here)) (literal-1 8) (literal-1 decrement-4-core)))) 7 "test slam i.e. update sample and call")
|
|
; test 11 static and dynamic
|